The RTDF generates and collects information of interest to all its members in managing contaminated soil and groundwater, information that may originate from many sources. These resources are being provided consistent with the intended purpose of this Web site. The U.S. EPA does not exercise editorial control over the information you may find in these documents, and the Standards of Ethical Conduct do not permit the U.S. EPA to endorse any private sector Web site, product, or service.